// jQuery File Tree Plugin
//
// Version 1.01
//
// Cory S.N. LaViska
// A Beautiful Site (http://abeautifulsite.net/)
// 24 March 2008
//
// Visit http://abeautifulsite.net/notebook.php?article=58 for more information
//
// Usage: $('.fileTreeDemo').fileTree( options, callback )
//
// Options:  root           - root folder to display; default = /
//           script         - location of the serverside AJAX file to use; default = jqueryFileTree.php
//           folderEvent    - event to trigger expand/collapse; default = click
//           expandSpeed    - default = 500 (ms); use -1 for no animation
//           collapseSpeed  - default = 500 (ms); use -1 for no animation
//           expandEasing   - easing function to use on expand (optional)
//           collapseEasing - easing function to use on collapse (optional)
//           multiFolder    - whether or not to limit the browser to one subfolder at a time
//           loadMessage    - Message to display while initial tree loads (can be HTML)
//
// History:
//
// 1.01 - updated to work with foreign characters in directory/file names (12 April 2008)
// 1.00 - released (24 March 2008)
//
// TERMS OF USE
// 
// This plugin is dual-licensed under the GNU General Public License and the MIT License and
// is copyright 2008 A Beautiful Site, LLC. 
//

if(jQuery) (function($)
{
	$.extend($.fn,
 {
		fileTree: function(o, h)
		{
			// Defaults
			if( !o )
			{
				 var o = {};
		  }
			if( o.root == undefined )
			{
				 o.root = '/';
			}
			if( o.script == undefined )
			{
				 o.script = 'jqueryFileTree.php';
			}
			if( o.folderEvent == undefined )
			{
				o.folderEvent = 'click';
			}
			if( o.expandSpeed == undefined )
			{
				o.expandSpeed= 500;
			}
			if( o.collapseSpeed == undefined )
			{
				o.collapseSpeed= 500;
			}
			if( o.expandEasing == undefined )
			{
				o.expandEasing = null;
			}
			if( o.collapseEasing == undefined )
			{
				o.collapseEasing = null;
			}
			if( o.multiFolder == undefined )
			{
				o.multiFolder = true;
			}
			if( o.loadMessage == undefined )
			{
				o.loadMessage = 'Loading...';
			}
			
			$(this).each( function() 
			{
				function showTree(c, t) 
				{
					$(c).addClass('wait');
					$(".jqueryFileTree.start").remove();
					$.post(o.script, { dir: t }, function(data)
					{
						$(c).find('.start').html('');
						$(c).removeClass('wait').append(data);
						if( o.root == t )
						{
							 $(c).find('UL:hidden').show();
					  }else
					  {
					  	 $(c).find('UL:hidden').slideDown({duration:o.expandSpeed, easing: o.expandEasing });
					  }
						bindTree(c);
					});
				}
				
				function bindTree(t) 
				{
					$(t).find('LI A').bind(o.folderEvent, function() 
					{
						if( $(this).parent().hasClass('directory') )
						{
							if($(this).parent().hasClass('collapsed'))
							{
								// Expand
								if( !o.multiFolder )
								{
									$(this).parent().parent().find('UL').slideUp({ duration: o.collapseSpeed, easing: o.collapseEasing });
									$(this).parent().parent().find('LI.directory').removeClass('expanded').addClass('collapsed');
								}
								$(this).parent().find('UL').remove(); // cleanup
								showTree( $(this).parent(), escape($(this).attr('rel').match( /.*\// )) );
								$(this).parent().removeClass('collapsed').addClass('expanded');
							}else{
								// Collapse
								$(this).parent().find('UL').slideUp({ duration: o.collapseSpeed, easing: o.collapseEasing });
								$(this).parent().removeClass('expanded').addClass('collapsed');
							}
						}else{
							h($(this).attr('rel'));
						}
						return false;
					});
					// Prevent A from triggering the # on non-click events
					if (o.folderEvent.toLowerCase != 'click')
					{
						 $(t).find('LI A').bind('click', function() { return false; });
					}
				}
				// Loading message
				$(this).html('<ul class="jqueryFileTree start"><li class="wait">' + o.loadMessage + '<li></ul>');
				// Get the initial file list
				showTree($(this),escape(o.root));
			});
		}
	});
})(jQuery);